Hunter 24650 User manual

Brand: Hunter

Model: 24650

Category: Thermostats

Type: User manual

This manual is also suitable for

OwnerÕs Manual

SINCE 1 8 8 6

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Table Of Contents

Installation

Operation

Features 6

Remove Old Thermostat 8

Labeling Wires 10

System Selector Switches 14

Connecting Wires and Mounting Thermostat 14

Programming/Setting Clock 16

Personal Program Schedule 20

Reviewing Program Settings 24

Manual Overide 25

Temperature Span 28

Filter Monitor 29

Trouble Shooting Guide 30

Typical Wiring Diagrams 32

Read This Before Installing Thermostat

IMPORTANT

Read the entire installation section of this

Owner’s Manual thoroughly before you begin

to install or operate your Hunter Thermostat.

• Remove the mylar label from the display

window.

INSTALLATION

All installation is normally performed at your

thermostat.

PROGRAMMING

You can practice programming before

installing your thermostat by inserting and

connecting the batteries and following the

instructions on page 14. This can be done while

you relax in your favorite chair and is a very

good way to familiarize yourself with all the

functions of your Hunter Thermostat.

OPERATION

Your Hunter Thermostat is designed to

operate with most gas, oil, electric or 2-wire

hot water heating, and air conditioning systems

that have 24-volt or millivolt control.

This Hunter Thermostat will not control multi-

stage heating or cooling systems, 110/220 V

systems, or 3 wire zone systems.

COMPRESSOR PROTECTION

The thermostat provides a 4-minute delay

after shutting off the compressor before it

can be restarted. This feature will prevent

damage to your air conditioner compressor

caused by rapid cycling. It does not provide a

delay when there are power outages.

TEMPERATURE RANGE

Your thermostat can be programmed between

40°F and 95°F (5°C and 35°C). However, it will

display room temperatures from 32°F to 99°F (0°C

and 37°C).

POWER FAILURE

Whenever the main power is interrupted or

fails, the battery power retains the programs

and current time.

This thermostat is designed to optimize the use of your heating and cooling equipment. It

does this by matching your comfort (the temperatures in your home) to your schedule.

An example:

6am – You wake up. Program 1 has the heat set to 70° (21°C).

7:30am – You leave for work. The second program turns the heat back to 62° (17°C)

while you are away.

5:00pm – You come home. The third program has already warmed your house back

to 70° (21°C).

10:00pm – You go to bed. A half hour later, program 4 turns the heat back to 64° (18°C)

to save energy while you are under the blankets.

How This Thermostat Works…And Saves You Money

BATTERY WARNING

When the batteries are low, the “LOW BATT”

indicator on the display will flash. When this

happens, install new batteries immediately.

Once the “LOW BATT” indicator appears, the

thermostat will continue to operate for

approximately 30 days. (Only alkaline batteries

should be used in your thermostat.

Rechargeable batteries have different properties

which may cause the thermostat to not operate

properly. Do not use old batteries.) The batteries

should last one year.

CAUTION: The batteries are the only source

of power used to operate your system. If you

do not replace the batteries, the display will

dim and your heating and cooling system will

stop operation.

NOTE: If you plan to be away from the

premises over 30 days, we recommend that

you replace the old batteries with new

alkaline batteries prior to leaving.

6-7

Features

Manual switch for

turning on heating and

cooling system.

Manual switch for

automatic or continuous

fan operation.

Battery door for easy access

Soft touch programming

buttons (see below)

Display shows time, day, temperature, program number,

hold, usage and low battery indicators.

Reset button for resetting computer back to

12:00 A.M. and clearing all programs.

Individual

pushbuttons for

raising or lowering

temperature settings.

Display back light for viewing in dark.

Feature only found on certain models

M T W TH F SA SU

SET TEMP HOLD TEMP

88 88

HEAT COOL

1234

FILTER

LO BAT

LIGHT

Changes the clock

into 12 or 24 hour

(military) mode.

For entering minute of day.

For revising

and changing

weekday or

weekend

programs

Reviews filter

usage in hours

and minutes.

Also resets filter

counter to zero.

Returns

display to

current

time and

temperature.

Automatically

programs the

thermostat for

weekday and

weekend

program

settings.

For entering day of week.

Provides

permanent

temperature

setting by

overriding

stored

programs.

Also, clears

manual

override and

returns to

current

program.

For entering hour

of day.

MIN

AUTO

PROGRAM

HOUR

PROG

DAY

HOLD

CLEAR

12/24 HRSFILTER RETURN

This thermostat comes with two #8 slotted screws and two wall anchors for mounting. To

install your unit, you should have the following tools and materials.

■ Slotted screwdriver ■ Electric drill and 3/16" bit

■ Hammer ■ Two 1.5V (AA) Size Alkaline batteries

CAUTION: Do not remove any wiring from existing thermostat before reading the

instructions carefully. Wires must be labeled prior to removal.

■ IMPORTANT! Turn off the power to the furnace at the main power panel or at the furnace.

■ Remove existing thermostat cover and thermostat. See Figure 1. Some thermostats will have

screws or other locking devices that must first be removed. Once wall mounting plate is

exposed, look for wires.

■ If wires are not visible, they may be connected to the back of the wallplate. Again, look for

screws, tabs, etc. Some models have doors that open to expose wires and mounting screws.

(See Figure 1).

8-9

Installation

What You Need

Remove Old Thermostat

TYPICAL HOME THERMOSTATS

FIGURE 1

Wall Mounting Plate Thermostat Cover

■ Each wire coming from the wall to the existing thermostat is connected to a terminal point on

that thermostat. Each of these terminal points is usually marked with a code letter as shown in

Table A on page 11.

■ The number of wires in your system can be as few as two (for heat only systems), as many as

eight, or any number in between. If you follow the labeling procedures correctly, you do not

have to be concerned about how many wires there are.

■ There is often no terminal marking on the existing thermostat of two wire, heat only systems.

Do not worry, just connect either of the wires to the RH terminal, then connect the other wire

to the W terminal to complete the circuit.

■ IMPORTANT! BEFORE DISCONNECTING ANY WIRES, APPL

Y THE SELF-ADHESIVE LABELS

PROVIDED TO THE WIRE AS SHOWN IN TABLE A ON PAGE 11. (For example, attach the

label marked W to the wire which goes to the W or H terminal on your existing thermostat.)

IGNORE THE COLOR OF THE WIRES

since these do not always comply with the standard.

■ After labeling wires, disconnect them from the existing

thermostat terminals.

■ Remove existing wallplate. To make sure wires do not fall

back into wall opening, you may want to tape them to the

wall.

■ If hole in wall is larger than necessary for wires, seal this hole

so that no hot or cold air can enter the back of the

thermostat from the wall. This air could cause a false

thermostat reading.

10-11

Installation

Label Wires

Wire Labeling

and connect to thermostat

Terminal shown

then mark wire

with label shown

If the code letter on your

existing thermostat is

RH, R,

VR or 4

24 Volt

G or F

Fan

RC, VC

24 Volt Cool

Y, C or M

(See Note)

Air Conditioning

W or H

Heating

RED

BLUE

GREEN

YELLOW

WHITE

This table will help you

match the labels to the

wires so you can attach

them to your Hunter

Thermostat.

NOTE: Follow the labels

when connecting wires

since many installations

do not follow color

coding of wires.

TABLE A

12-13

Installation

NOTE: If your thermostat has one wire marked R or RH (4-wire system), then leave

the jumper wire between the RH and RC terminals. Otherwise, if you have separate

RH and RC wires (5-wire system), then remove the jumper wire between the RH and

RC terminals.

NOTE: Do not connect a “Common” wire (sometimes labelled “C”) to any terminal on

this thermostat. Tape up the wire and do not use. This wire provides electricity to non-

battery powered thermostats.

Wire Labeling

Snap open the wallplate from your thermostat by pressing the release tab on the bottom of

the thermostat.

Position wallplate on wall and pull existing wires through large opening. Then level for

appearance. Mark holes for plastic anchors provided if existing holes do not line up with

Hunter Thermostat holes.

Drill holes with 3/16" bit and gently tap anchors into the holes until flush with wall.

Reposition wallplate to wall, pulling wires through large opening. Insert mounting screws

provided into wall anchor and tighten. (See Figure 2.)

Mount Wallplate and Thermostat

Figure 2

The heating system selector and the F°/C° selector switches are located on the Printed

Circuit Board.

■ Heating system selector

The heating system selector is a switch on the Printed Circuit Board on the inside of the

thermostat. The switch is at “HG” position. Leave it in this position if you have a gas

furnace or an oil burner.

If you have an electric furnace, test to see whether the heat and fan come on as

expected. Leave the switch in the “HG” position. If the fan does not come on when the

thermostat calls for heat, change the switch position to “HE.”

The system selector has no effect in the cooling mode.

NOTE: “HG” position is for gas and most other systems. “HE” position is for certain

electric systems having a fan relay.

■ F°/C° selector (Fahrenheit/Centigrade)

Your thermostat is set for F° mode from the factory. In order to

change to C° mode, slide the switch to C° and press reset

button on front of the thermostat with a paper clip. The reset

button is located near the display.

NOTE: Unless reset button is pressed, the thermostat will

not change the mode.

14-15

Installation

Selector Switches

Connect Wires and Mount Thermostat Cover to Wall Plate

■ Match and connect the labeled wires to the appropriate coded terminal screws on the

mounting plate. (See Figure 3, 4.) Ignore any wires which may be present, but which were

not connected to the old thermostat.

C F

■ Match and connect the labeled wires to the appropriate coded terminal screws on the

mounting plate. (See Figure 3, 4.) Ignore any wires which may be present, but which were

not connected to the old thermostat.

■ Be sure to tighten the terminal screws securely, otherwise a loose wire could cause operational

problems with your system or thermostat.

■ Push excess wire back into hole to prevent interference with mounting of the thermostat cover.

■ Make sure the Function Switch is set at OFF, and the FAN-AUTO Switch is in AUTO.

■ Insert the bottom tab on the thermostat body into

the slot at the bottom of the wallplate. Press top

of the thermostat body to snap it into the

wallplate. (NOTE: Do not force the thermostat

onto the wallplate, as the terminal pins may be

damaged. If it does not snap properly, the

thermostat may not work.)

■ Insert the two AA size batteries, observing the

polarity marked on the unit.

■ Switch on the main power. Press the reset button.

(See Figure 5.)

FIGURE 3

FIGURE 4

RC RH

FIGURE 5

Programming

Remove mylar label covering display

window.

When the heating or cooling system is

actually operating, “HEAT” or “COOL”

will appear on the display.

If power is interrupted the batteries will

keep all programs.

If “LOW BATT” indicator appears on the

display replace the batteries.

Setting the Time and Day of Week

When you first install the two AA batteries, the thermostat automatically sets the day and

time to Monday, 12:00 a.m., shows the current room temperature and is programmed for 68°

in heat mode and 78° in cool mode. Press the reset button after installing new batteries.

The first data you should enter is the current time and day of week. As the keys are pressed,

the display will show the data being entered.

■ Initial read-out after pressing

reset button.

■ Current room temperature is 72°.

■ No indication of program number.

M T W TH F SA SU

SET TEMP HOLD TEMP

00 72

HEAT COOL

1234

FILTER

LO BAT

■ Press once. Temperature digits

disappear, show time set mode.

HOUR

M T W TH F SA SU

SET TEMP HOLD TEMP

00 72

HEAT COOL

1234

FILTER

LO BAT

EXAMPLE:

If the unit is

being

installed at

9:15 p.m.,

Saturday, to

set the

thermostat,

you would

press the

keys in the

shown

sequence.

16-17

■ Press and hold until current hour

appears on display.

■ Press and hold until current

minutes appear on display.

■ Press until current day appears

on display.

■ Returns to normal time and

temperature.

■ If return is not pressed it will return

automatically in 10 seconds.

HOUR

MIN

DAY

RETURN

M T W TH F SA SU

SET TEMP HOLD TEMP

00 72

HEAT COOL

1234

FILTER

LO BAT

M T W TH F SA SU

SET TEMP HOLD TEMP

I5 72

HEAT COOL

1234

FILTER

LO BAT

M T W TH F SA SU

SET TEMP HOLD TEMP

I5 72

HEAT COOL

1234

FILTER

LO BAT

M T W TH F SA SU

SET TEMP HOLD TEMP

I5 72

HEAT COOL

1234

FILTER

LO BAT

Programming

18-19

Studies conducted by the Department of

Energy estimate that setting your thermostat

back 10°F for two 8-hour periods during

winter can reduce your fuel bill by as much

as 30%. By setting your thermostat up 5° for

two 8-hour periods during summer you can

reduce your fuel bill up to 25%.

Your thermostat is capable of holding up to

4 separate programs for heat or cool for

weekdays and 4 seperate programs for each

weekend day.

A typical set of programs is shown in Table 1.

Weekday Program (Mon. – Fri.)

Weekday

Winter

Program 1 6:00AM 69°F (21°C)

Weekday

Winter

Program 2 8:30AM 60°F (16°C)

Weekday

Winter

Program 3 3:00PM 68°F (20°C)

Weekday

Winter

Program 4 11:00PM 58°F (14°C)

TABLE 1

Typical Suggested Summer

and Winter Programs for Maximum Savings

NOTE: The thermostat program will NOT

take effect immediately after

programming of your thermostat but at

the next programmed time/temperature

change. The thermostat is pre-set to 68°F

(20°C) for heat and 78°F (25°C) for air

conditioning. So if you want a

temperature other than 68°F or 78°F

(20°C or 25°C) right away, use the

temporary manual override feature

(described on page 26) to enter your

desired temperature setting.

When your program becomes effective at

the next time/temperature setting, the

appropriate corresponding program number

will appear on the display.

Weekend Program (Sat.)

Weekend

Winter

Program 1 7:00AM 69°F (21°C)

Weekend

Winter

Program 2 11:00PM 58°F (14°C)

Weekend Program (Sun.)

Weekend

Winter

Program 1 7:00AM 69°F (21°C)

Weekend

Winter

Program 2 11:00PM 58°F (14°C)

Programming

Before programming or changing the

program, use this Personal Program Schedule

to determine which times and temperature

settings will best satisfy both your comfort

and energy saving requirements.

Use a pencil so you can revise your records

each time you change your temperature

settings.

Personal Program Schedule

FOR WINTER FOR SUMMER

ROGRAM WAKE LEAVE RETURN SLEEP

NUMBER 1 2 3 4

MON. TIME TIME TIME TIME

thru

FRI. TEMP TEMP TEMP TEMP

SAT. TIME TIME

TEMP TEMP

SUN. TIME TIME

TEMP TEMP

ROGRAM WAKE LEAVE RETURN SLEEP

NUMBER 1 2 3 4

MON. TIME TIME TIME TIME

thru

FRI. TEMP TEMP TEMP TEMP

SAT. TIME TIME

TEMP TEMP

SUN. TIME TIME

TEMP TEMP

20-21

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Hunter 24650 User manual

Brand: Hunter

Model: 24650

Category: Thermostats

Type: User manual

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Hunter 24650 User manual

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